On Mon, Oct 28, 2019 at 12:29:40 +0900, Ryota Ozaki wrote: > On Fri, Oct 25, 2019 at 11:19 PM Mouse <mo...@rodents-montreal.org> wrote: > > > > > [W]hich of the following is more readable to the user: > > > > > $ ls foo > > > ls: foo: No such file or directory > > > > > or > > > > > $ ls foo > > > ls: stat(foo): No such file or directory > > > > It depends entirely on the user. > > > > As I recently wrote on a non-NetBSD mailing list, there is no such > > thing as a good or bad user interface; there is only a good or bad user > > interfaces for a particular user (or class of sufficiently-similar > > users). > > > > I've lost track of the number of times I've had to resort to a > > sledgehammer such as ktrace to find out what's really going wrong > > because an error message doesn't report enough information. > > I've had similar experiences on KASSERT; if a KASSERT fails because of > memory corruption, I wish to know not only if it fails or not but also > values used in KASSERT.
KASSERT is, very specifically, information for developers (asserting something about the internal state of the code), not for users. -uwe